I recently purchased an oxygen concentrator from I...

I recently purchased an oxygen concentrator from Inogen and I am extremely satisfied with the product. It has made a huge difference in my life and I am now able to go about my daily activities without worrying about running out of oxygen. The customer service at Inogen was also top-notch. They were very helpful and answered all of my questions. I would highly recommend Inogen to anyone in need of a reliable oxygen concentrator.